You can share your selfies with us by posting them to Twitter using #selfieday, use the BBC upload form, or email us at yourpics@bbc.co.uk and don't forget to tell us what aspect of your identity the picture is illustrating.

BBC journalists have been sending in their selfies already. Here are a few of the best ones.

Image copyrightRobert Peston / Matthew Price

Left: Robert Peston took his selfie while filming at the wall of Marshalsea debtors' prison. "#EconCliche," he joked.

Right: Europe correspondent Matthew Price: "London today. More at home here than other English cities."

Image copyrightMike Bushell

BBC Breakfast sports presenter Mike Bushell sent in two selfies reflecting different sides of his character. "Two random selfies showing my love for running (at the London Marathon) and fancy dress".